Kim Dong Han discovered that FreeRDP did not correctly validate the size of certain variables, which could cause a buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
2.6.1+dfsg1-3ubuntu2.82.2.0+dfsg1-0ubuntu0.18.04.4+esm32.6.1+dfsg1-0ubuntu0.20.04.2+esm12.11.5+dfsg1-1ubuntu0.1~esm3